/*
 * Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

// Package connection -
package connection

import (
	"time"

	"yuanrong.org/kernel/pkg/common/faas_common/grpc/pb" // production: package api
	"yuanrong.org/kernel/pkg/common/faas_common/grpc/pb/runtime"
)

// SendOption -
type SendOption struct {
	Timeout time.Duration
}

// SendCallback -
type SendCallback func(message *runtime.NotifyRequest)

// Connection defines basic grpc connection
type Connection interface {
	Send(message *api.StreamingMessage, option SendOption, callback SendCallback) (*api.StreamingMessage, error)
	Recv() (*api.StreamingMessage, error)
	Close()
	CheckClose() chan struct{}
}
